1 /* Test and measure memcpy functions.
2 Copyright (C) 1999-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 /* test-memcpy-support.h contains all test functions. */
20 #include "test-memcpy-support.h"
21
22 static void
do_random_large_tests(void)23 do_random_large_tests (void)
24 {
25 size_t i, align1, align2, size;
26 for (i = 0; i < 32; ++i)
27 {
28 align1 = random ();
29 align2 = random ();
30 size = (random () % 0x1000000) + 0x200000;
31 do_test1 (align1, align2, size);
32 }
33
34 for (i = 0; i < 128; ++i)
35 {
36 align1 = random ();
37 align2 = random ();
38 size = (random () % 32768) + 4096;
39 do_test1 (align1, align2, size);
40 }
41 }
42
43 int
test_main(void)44 test_main (void)
45 {
46 size_t i, j;
47
48 test_init ();
49
50 printf ("%23s", "");
51 FOR_EACH_IMPL (impl, 0)
52 printf ("\t%s", impl->name);
53 putchar ('\n');
54
55 do_test (0, 0, getpagesize () - 1);
56
57 for (i = 0x200000; i <= 0x2000000; i += i)
58 {
59 for (j = 64; j <= 1024; j <<= 1)
60 {
61 do_test1 (0, j, i);
62 do_test1 (4095, j, i);
63 do_test1 (4096 - j, 0, i);
64
65 do_test1 (0, j - 1, i);
66 do_test1 (4095, j - 1, i);
67 do_test1 (4096 - j - 1, 0, i);
68
69 do_test1 (0, j + 1, i);
70 do_test1 (4095, j + 1, i);
71 do_test1 (4096 - j, 1, i);
72
73 do_test1 (0, j, i + 1);
74 do_test1 (4095, j, i + 1);
75 do_test1 (4096 - j, 0, i + 1);
76
77 do_test1 (0, j - 1, i + 1);
78 do_test1 (4095, j - 1, i + 1);
79 do_test1 (4096 - j - 1, 0, i + 1);
80
81 do_test1 (0, j + 1, i + 1);
82 do_test1 (4095, j + 1, i + 1);
83 do_test1 (4096 - j, 1, i + 1);
84
85 do_test1 (0, j, i - 1);
86 do_test1 (4095, j, i - 1);
87 do_test1 (4096 - j, 0, i - 1);
88
89 do_test1 (0, j - 1, i - 1);
90 do_test1 (4095, j - 1, i - 1);
91 do_test1 (4096 - j - 1, 0, i - 1);
92
93 do_test1 (0, j + 1, i - 1);
94 do_test1 (4095, j + 1, i - 1);
95 do_test1 (4096 - j, 1, i - 1);
96 }
97 }
98
99 do_random_large_tests ();
100 return ret;
101 }
102
103 #include <support/test-driver.c>
104